Linux php安装fileinfo扩展

参考链接：https://www.cnblogs.com/niefudong/p/10407644.html

如果在执行

./configure --with-php-config=/usr/local/php/bin/php-config时报错，报错如下

Configuring for:
PHP Api Version:         20160303
Zend Module Api No:      20160303
Zend Extension Api No:   320160303
Cannot find autoconf. Please check your autoconf installation and the
$PHP_AUTOCONF environment variable. Then, rerun this script.
执行命令：yum install m4 yum install autoconf后重新执行./configure --with-php-config=/usr/local/php/bin/php-config